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    <a href="../index.html">cppreference.com</a> &gt; <a href=
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    using
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  <p>The using keyword is used to import a <a href=
  "namespace.html">namespace</a> (or parts of a namespace) into the
  current scope.</p>

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    Example code:
  </div>

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    <p>For example, the following code imports the entire <em>std</em>
    namespace into the current scope so that items within that
    namespace can be used without a preceeding &quot;std::&quot;.</p>
    <pre class="example-code">
 using namespace std;           
</pre>

    <p>Alternatively, the next code snippet just imports a single
    element of the <em>std</em> namespace into the current
    namespace:</p>
    <pre class="example-code">
 using std::cout;               
</pre>
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    Related topics:
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    <a href="namespace.html">namespace</a>
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